Section 4 - ADJUSTMENTS & REPAIR
4.5MOWER BLADE REPLACEMENT
4.5.1.BLADE WEAR LIMITS (Continued from previous page)
NEW BLADE
WEAR LIMIT (NOTCH STARTS)
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW BLADE.
AIR LIFT
(4)BLADE SPACERS
BLADE
BEVELED
WASHER
MOUNTING
BOLT
FIGURE 4.5
WARNING
DO NOT use a cutting blade that shows signs of excessive wear or damage. Refer to Figure 4.5. Wear heavy leather gloves when handling or working around cutting blades. Blades are extremely sharp and can cause severe injury.
4.5.2.BLADE SHARPENING
1.Remove blade. See Figure 4.6.
2.Inspect condition of blade.
See Figure 4.5.
3.If blade is in good condition, sharpen at
22to 28 degrees. DO NOT sharpen beyond existing cutting edge.
See Figure 4.7.
4.Check blade balance after sharpening. If necessary, correct blade balance by grinding the heavy end of blade. IMPORTANT: Blade balancing should be performed by a qualified dealer.
5.Reinstall blade. See Figure 4.5. Torque blade mounting bolts to recommended range of 70 to 80 ft. lbs.
FIGURE 4.6
DO NOT SHARPEN
BEYOND ORIGINAL
CUTTING EDGE
| 22º TO 28º |
BLADE | BLADE TIP |
ORIGINAL CUTTING EDGE
FIGURE 4.7
21
